diff --git a/jsimd_none.c b/jsimd_none.c
index 34aefc9..65e3f8f 100644
--- a/jsimd_none.c
+++ b/jsimd_none.c
@@ -3,6 +3,7 @@
  *
  * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
  * Copyright 2009-2011, 2014 D. R. Commander
+ * Copyright 2015 Matthieu Darbois
  *
  * Based on the x86 SIMD extension for IJG JPEG library,
  * Copyright (C) 1999-2006, MIYASAKA Masaru.
@@ -387,3 +388,16 @@
 {
 }
 
+GLOBAL(int)
+jsimd_can_huff_encode_one_block (void)
+{
+  return 0;
+}
+
+GLOBAL(JOCTET*)
+jsimd_huff_encode_one_block (void * state, JOCTET *buffer, JCOEFPTR block,
+                             int last_dc_val, c_derived_tbl *dctbl,
+                             c_derived_tbl *actbl)
+{
+  return NULL;
+}